Sepistatud terasest äärikuklapid: esimene valik kvaliteetsete tööstusseadmete jaoks

Sepistatud terasest äärikuklapid: esimene valik kvaliteetsete tööstusseadmete jaoks

Welcome to our comprehensive guide on forged steel flange gate valves, the superior choice for high-quality industrial equipment. In this article, we will delve into the features, benefits, and applications of these forged steel flange gate valves, highlighting their significance in various industries. If you are seeking robust and reliable solutions for your industrial needs, forged steel flange gate valves are undoubtedly the top choice.

What is a forged steel flange gate valve?

A forged steel flange gate valve is a special type that controls a pipeline’s fluid flow (liquid or gas). Its body is usually made of high-strength, highly corrosion-resistant forged steel. The flange section then connects the valve to other piping components to create a monolithic system.

How does a forged steel flanged gate valve work?

The working principle of a forged steel flange gate valve is very straightforward and clear. When we need to stop fluid flow, we operate the gate valve’s handle or wheel handle to close the klapp. Conversely, we open the valve to let the fluid flow. Notably, forged steel flanged gate valves are usually used for full opening or closing, not to regulate the flow.

What are the main application areas of forged steel flange gate valves?

Forged steel flanged gate valves are widely used in industrial and commercial settings. Due to its strong strength and corrosion resistance, it is often used in petroleum, chemical, electric power, metallurgy, and other fields. It is also widely used in water treatment, food, beverage, medical and pharmaceutical fields.

What are the advantages of forged steel flange gate valves?

• Durability: Due to the high strength and corrosion resistance of forged steel material, this gate valve has high durability and reliability.
• Performance: Forged steel flanged gate valve has excellent sealing performance, which can effectively prevent fluid leakage.
• Easy to install: Its flanged design makes installation and disassembly relatively simple and quick.

How to choose the right integral forged steel flanged gate valve?

There are several key factors to consider when selecting a forged steel flanged gate valve. These factors include:

• Fluid type: The fluid you need to handle will influence your choice. For example, if you need to handle a corrosive fluid, you need a valve with high corrosion resistance.
• Operating pressure and temperature: Operating pressure and temperature are also important factors in choosing a valve. It would be best to choose a valve that can withstand the pressure and temperature of your system. If the valve’s operating pressure is lower than the system pressure, the valve may be damaged by excessive pressure.
• Installation space: The amount of space you have for installation will also affect your choice. If you have limited space, then choose a valve with a compact design.
• Determine the type of valve: You need to determine the type of valve you need. This depends on the needs of your application. For example, if you need a valve that can be closed or opened quickly, you may need a butterfly valve. If you need a valve that can precisely control flow, a ball valve may be your best choice.
• Pay attention to the choice of valve material: The choice of material is also very important. You must choose the right material for your fluid medium and operating environment. For example, if your application environment is high-temperature and high-pressure, you may need to choose a high material strength and corrosion resistance valve.
• Determine the valve size: The valve size needs to be determined by your pipe size and flow requirements. Choosing a too large or too-small valve may affect the system’s normal operation.

Maintenance and care of forged steel flange gate valves

Regular maintenance and servicing are very important to maintain the performance and life of forged steel flange gate valves. The following are some basic maintenance and servicing steps:

• Regular inspection: Check the working condition of the valve regularly, including the sealing performance, the operation of the handle or wheel hand, etc.
• Cleaning: Keep the valve clean to avoid impurities entering the valve’s interior and affecting its working performance.
• Lubrication: regular lubrication of the valve’s moving parts to maintain good working conditions.

Forged steel gate valve overall flange end valve cover types

Forged steel gate valve integral flange end valve has three kinds of bonnet design; the first is the bolt type bonnet, connected by concave and convex surface, using stainless steel belt with flexible graphite winding gasket, according to the demand, can also be used ring connection, the second is the welding type bonnet, through the threaded seal after welding, according to the demand can also be directly used rigid welding, the third is the self-sealing bonnet, through the thread and self-sealing bonnet connection.
Integral flange end valve structure design can be used in gate ventiilid, globe ventiilid, riser ventiilid, and swing check valves.

Structural design and specification of forged steel flanged gate valves

• Forged steel gate valves are manufactured using API 602, BS 5352, and ANSI B16.34.
• Test and acceptance according to API 598, marking according to MSS SP-25.

Forged steel flange gate valve structure form

• 1. Full bore or reduced bore
• 2. Structure length according to ANSI/ASME B16.10
• 3. Flange according to ANSI/ASME B16.5
• 4. Self-sealing bonnet
• 5. Open stem with bracket
• 6. Self-adjusting packing sleeve at both ends;
• 7. Body inverted seal
• 8. Integral valve body äärik
• 9. Butt weld end according to ANSI/ASME B16.25
• 10. Ring joint body bonnet gasket
• 11. Bolted bonnet with wound gasket, threaded seal, welded bonnet, or self-sealing bonnet

Materials for forged steel flanged gate valves

Item	Name	American standard carbon steel	American standard alloy steel		American standard stainless steel
1	Valve Body	A105	A182 F22		A182 F304(L)		A182 F316(L)
2	Valve Seat	A276 420	A276 304		A276 304(L)		A276 316(L)
3	Ram	A276 410&430	A182 F304		A182 F304(L)		A182 F316(L)
4	Valve Stem	A182　F6	A182　F304		A182 F304(L)		A182 F316(L)
5	Spacer	Corrugated SS+graphite			SS+PTFE
6	Valve Cover	A105	A182 F22		A182 F304(L)		A182 F316(L)
7	Bolt	A193 B7	A193 B16		A193 B8		A193 B8M
8	Pin	A276 T410			A276 304
9	Packing Sleeve				A182 F304(L)		A182 F316(L)
10	Articulated Screw	A193 B7	A193 B16		A193 B8		A193 B8M
11	Packing Gland	A105	A182 f11		A182 F304(L)		A182 F316 (L)
12	Nut	A194 2H	A194 4		A194 8		A194 8M
13	Stem Nut	A276 410/Cu-Alloy (Copper alloy)
14	Handwheel Locking Nut	A194 2H	A194 4		A194 8		A194 8M
15	Nameplate	SS
16	Handwheel	A197
17	Pad	A473 431
18	Filler	Flexible Graphite				PTFE
Applicable medium		(Water, oil, gas, etc.)				(Acids) HNO3,CH3OOH etc
Applicable temperature		-29℃-425℃		-29℃-550℃		-29℃-180℃

Note: Other materials are available upon request

• CS = carbon steel;
• AS = alloy steel;
• SS = stainless steel.

Forged steel flange gate valve structure diagram

Forged steel flange gate valve size and weight table

Diameter NPS			1/2	3/4	1	1/4	1-1/2	2
L(RF) L1(BW)	150		108	117	127	140	165	178
	300		140	152	165	178	190	216
	600		165	190	216	229	241	292
H(OPEN)	150,300		158	169	197	236	246	283
	600		169	197	236	246	283	320
W			100	100	125	160	160	180
Weights	150	RF	4.5	5.2	8.2	11.5	12.5	20.3
		BW	2.8	3.3	5.4	7.1	8.2	12.5
	300	RF	4.8	6.2	9.3	14	15.5	23.4
		BW	3.5	4.4	6.8	8.1	9.2	15.4
	600	RF	5.9	7.4	10.4	16.2	17.5	28.3
		BW	4.5	5.1	8.2	10.5	12.4	20.1

Diameter NPS		1/2	3/4	1	1-1/4	1-1/2	2
L(RTJ)	9,001,500	216	229	254	279	305	368
L1(BW)	9,001,500	216	229	254	279	305	368
H(OPEN)		197	197	236	246	283	330
W		125	125	160	160	180	200

Forged steel flange gate valve installation and use

• 1. Before installation shall check the valve cavity and sealing surface and other parts, do not allow dirt or sand adherence;
• 2. Each connection part bolts require uniform tightening;
• 3. Check that the packing parts require tightening, both to ensure the sealing of the packing, but also to ensure that the gate open is flexible;
• 4. The user, in the installation of the valve before, must proofread the valve model and connection size and pay attention to the media flow direction to ensure consistency with the valve requirements;
• 5. The user in the installation of the valve must be reserved the necessary space for the valve drive;
• 6. The wiring diagram shall carry out the wiring of the driving device;
• 7. Gate valve must be regularly maintained and shall not collide and squeeze at will so as not to affect the seal.

How to test the overall forged steel flange gate valve?

In the realization of effective industrial processes, the role of the overall forged steel flange gate valve must be addressed. As a key piece of equipment, it controls the flow of fluid, thus ensuring a smooth workflow. This gives it an important place in many important industrial sectors. However, inspecting and maintaining these devices properly is vital, and their performance under various conditions can be effectively ensured through the following seven-step inspection process.
1. Observe the appearance of the integral forged steel flange gate valve
First, you need to inspect the appearance of the gate valve. The exterior inspection should include looking at the device for any external damage or wear. The individual components of the gate valve, such as the handwheel, stem, and flange, should also be inspected for any deformation, damage, or corrosion.
2. Checking the sealing performance of the integral forged steel flanged gate valve
Secondly, the inspection of sealing performance is also indispensable. Under normal operating conditions, the integral forged steel flange gate valve should maintain good sealing performance to prevent fluid leakage. This can usually be checked by placing dye around the device and seeing if any dye leaks out of the gate valve.
3. Test the operating performance of the integral forged steel flanged gate valve
Next, you need to check the operational performance of the integral forged steel flanged gate valve. This includes testing the opening and closing of the gate valve to ensure that it will work smoothly when needed. It is also necessary to check that the stem can be rotated smoothly and that the valve plate can be positioned correctly.
4. Check the seat of the integral forged steel flanged gate valve
Finally, you need to check the valve seat of the gate valve. The seat is one of the most important parts of the gate valve because it directly affects the sealing performance of the gate valve. You should check the seat for any damage or wear and tight contact between the seat and the valve plate.
5. Test the fluid control capability of the integral forged steel flanged gate valve
Another important testing step is to test the fluid control capability of the integral forged steel flanged gate valve. When performing this test, one should examine whether the flow rate of fluid flowing through the valve at different degrees of opening can meet expectations. If the flow rate does not meet expectations, further maintenance or adjustment of the valve may be required.
6. Check the installation of the integral forged steel flange gate valve
The correctness of the installation directly affects the working performance of the integral forged steel flanged gate valve, so it must also be checked. Check whether the gate valve is installed in the correct location, whether there is air or liquid leakage at the connection with the pipeline, whether the installation angle and direction are correct, etc.
7. Check the cleanliness of the overall forged steel flange gate valve
Checking the cleanliness is also a very important step. As the environment in industrial production is often complex and changeable, if a large amount of dust and impurities accumulate inside the valve, it may affect its normal work. Therefore, it should be cleaned and maintained regularly to ensure the normal operation of the valve.

How to choose the right manufacturer of integral forged steel flange gate valves?

Integral forged steel flanged gate valves are vital to the hydraulic system. They are used in various industries, including oil and gas, chemical, and heating systems. Choosing a good integral forged steel flanged gate valve manufacturer can ensure that your system operates properly and efficiently, so choosing the right manufacturer becomes an important issue.
Manufacturer’s experience and expertise
When looking for a great flanged gate valve manufacturer, you first need to consider their experience and expertise. Does the manufacturer have extensive industry experience? Does their team have deep expertise and skills? If the answer is yes, this manufacturer may be a good choice. A manufacturer with experience and expertise can provide a high-quality, durable product to ensure your system runs consistently.
Product Quality and Stability
The quality and stability of the integral forged steel flanged gate valve is another key factor you need to consider. This type of valve requires a very high degree of precision in its design and manufacturing process to work consistently in various extreme environments. Therefore, you need to find a manufacturer that focuses on quality and precision and who can deliver products that meet or exceed international standards.
Manufacturer’s reputation and customer feedback
When choosing a manufacturer of integral forged steel flanged gate valves, you must consider their reputation and customer feedback. You can learn about a manufacturer’s reputation by searching online, reviewing industry journals, or asking your peers in the industry. In addition, customer feedback can also provide valuable information, such as their satisfaction with the product, the quality of the manufacturer’s service, etc.
After-sales service
A good manufacturer should be able to provide excellent after-sales service. This includes installation and maintenance guides, troubleshooting, spare parts supply, and on-site support. Excellent after-sales service will not only solve the problems you encounter during use but also extend the product’s life and improve the overall effectiveness.
Price
Although price is not the only criterion for selecting a manufacturer of integral forged steel flanged gate valves, it is still an important consideration. A good manufacturer should be able to offer a cost-effective product. At the same time, they should have a clear and transparent pricing policy with no hidden costs.
Delivery time
When choosing a manufacturer, you also need to consider their delivery time. In many cases, a manufacturer that can deliver on time will make your job smoother. Therefore, you should choose a manufacturer with a good delivery record.
Technical Support
A good manufacturer of integral forged steel flanged gate valves should have a strong technical support team. This way, they can provide prompt, professional help when you have problems installing or using the valve.
Manufacturer’s ability to innovate
When choosing a valve manufacturer, you must also consider their ability to innovate. An innovative manufacturer can provide the latest technology and solutions to help you meet your challenges.
Choosing a good overall forged steel flanged gate valve manufacturer requires consideration of several factors, including their experience, product quality, reputation, after-sales service, price, delivery time, technical support, and ability to innovate. By considering these factors together, you can find a valve manufacturer that best suits your needs.